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Evaluating the bioactivity of endodontic sealers with respect to their thermo-nanomechanical properties Cover

Evaluating the bioactivity of endodontic sealers with respect to their thermo-nanomechanical properties

Open Access
|Feb 2024

Figures & Tables

Fig. 1.

TGA and DTG thermograms of CERASEAL root sealer

Fig. 2.

TGA and DTG thermograms of MTA FILLAPEX

Fig. 3.

TGA and DTG thermograms of SEALAPEX root canal sealer

Fig. 4.

TGA and DTG thermograms of AH PLUS root canal sealer

Fig. 5.

Load-displacement curves recorded on the surface of the specimens: a) CERASEAL; b) MTA FILLAPEX; c) SEALAPEX and d) AH PLUS

Fig. 6.

Box plot graphical representation of hardness values obtained from nanoindentation tests as a function of contact depth for each specimen (*p values < 0.01)

Fig. 7.

SEM micrograph recorded on the surface of SEALAPEX sample before (a–c) and after immersion in SBF (d–f) along with the EDX spectrum

Fig. 8.

SEM micrograph recorded on the surface of MTA FILLAPEX sample before (a–c) and after immersion in SBF (d–f) along with the EDX spectrum

Fig. 9.

SEM micrograph recorded on the surface of AH PLUS sample before (a–c) and after immersion in SBF (d–f) along with the EDX spectrum

Fig. 10.

SEM micrograph recorded on the surface of CERASEAL sample before (a–c) and after immersion in SBF (d–f) along with the EDX spectrum

The tested root canal sealers: composition, manufacturers and setting time (according the manufacturer description)

SealerCompositionSetting time (min)Manufacturer
CERASEALCalcium silicates, zirconium oxide, thickening agent210Meta Biomed Co., Cheongju, Korea
MTA FillapexBase paste: Salicylate resin, natural resin, calcium tungstate, nanoparticulated silica, pigments Catalyst paste: Diluting resin, tricalcium silicate, di-calcium silicate, calcium oxide, tricalcium aluminate, nanoparticulated silica, pigments.130Angelus Dental Solutions, Londrina, PR, Brazil
SEALAPEXBase paste: sulphonamide resin, N-ethyl toluene, silicon dioxide, zinc oxide, calcium oxide; Catalyst paste: isobutyl salicylate resin, silicon dioxide, bismuth trioxide, titanium dioxide, pigments1400SybronEndo - Sybron Dental Specialties, Glendona, CA, USA
AH PlusPaste A: bisphenol A epoxy resin, bisphenol F epoxy resin, calcium tungstate, zirconium oxide, silica, iron oxide pigments; Paste B: dibenzylamine, aminoadamantane, tricyclodecane-diamide, calcium tungstate, zirconium oxide, silica, silicone oil480Dentsply Sirona, York, PA, USA

Measurement of pH, Ca2+ and PO43− ions in SBF solution, at different time point

Sample1 day7 days14 days21 days28 days
pH
CERASEAL10.2 ± 0.9a11.7 ± 0.9a9.7 ± 0.1a9.2 ± 0.2a8.7 ± 0.5a
MTA FILLAPEX9.2 ± 0.1b9.8 ± 0.2b8.9 ± 0.1b8.2 ± 0.2b8.2 ± 0.2a
AH PLUS7.4 ± 0.2c7.9 ± 0.2c7.2 ± 0.3c7.2 ± 0.3c7.0 ± 0.2b
SEALAPEX8.2 ± 0.2d8.4 ± 0.2d8.4 ± 0.1b8.2 ± 0.1b8.4 ± 0.1a
Ca2+ (mg/L)
CERASEAL180.2 ± 20.2a90.7 ± 10.5a80.5 ± 10.2a51.7 ± 10.1a31.4 ± 3.9a
MTA FILLAPEX90.4 ± 10.5b130.5 ± 11.6b110.8 ± 10.9b60.5 ± 7.5b42.2 ± 5.5b
AH PLUS110.2 ± 15.5c92.5 ± 10.2a88.7 ± 9.2c90.3 ± 9.8c90.7 ± 10.2c
SEALAPEX97.5 ± 10.0d105.5 ± 11.5b98.2 ± 10.2d96.1 ± 10.5d94.2 ± 10.8d
PO4 3− (mg/L)
CERASEAL48.3 ± 5.0a37.2 ± 4.0a25.1 ± 2.0a19.2 ± 1.5a15.5 ± 2.0a
MTA FILLAPEX42.8 ± 5.0b30.5 ± 3.5b22.1 ± 2.0b16.8 ± 2.0b14.0 ± 2.0a
AH PLUS40.5 ± 5.0c39.2 ± 4.0c32.9 ± 3.0c30.5 ± 3.5c29.2 ± 3.0b
SEALAPEX42.1 ± 5.0b38.5 ± 4.0c35.0 ± 3.0d34.0 ± 4.0d35.0 ± 3.0c
DOI: https://doi.org/10.2478/msp-2023-0038 | Journal eISSN: 2083-134X | Journal ISSN: 2083-1331
Language: English
Page range: 126 - 139
Submitted on: Nov 22, 2023
|
Accepted on: Jan 25, 2024
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Published on: Feb 19, 2024
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2024 Andreea Marica, Luminita Fritea, Florin Banica, Iosif Hulka, Gerlinde Rusu, Cosmin Sinescu, Traian Octavian Costea, Simona Cavalu, published by Wroclaw University of Science and Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.